# def shi():
#     print('你好')
#
#
# shi()
#222222222
# def add():
#     a = 3
#     b = 5
#     s = a + b
#     print(s)
#     return a
#
#
# c = add()
# print(c)
#
#333333
# def add(a, b):
#     print(a + b)
#
#
# add(1, 3)

#444444
# a = 1
# b = 3
# add(a, b)

#55555
# add(2 * 3, 4 * 5)
#
# c = 3
# add(8, c * 3)

#6666
# def score(a, b, c):
#     print('张三成绩为:', a)
#     print('李四成绩为:', b)
#     print('王五成绩为:', c)
#
#
# score(85, 92, 60)

#7777
def reg (name, age,sex="女"):
    print('姓名：{} 年龄{} 性别{}'.format(name, age, sex))


reg('张三', 20)
reg('李四', 21, '男')


